In the morning of Sunday June 8th, 2025, a shallow and significant Magnitude 5.3 earthquake hit in the Philippine Sea 140 kilometer from Dededo Village, Guam. Another nearby country is Northern Mariana Islands.
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Earthquake Summary
This earthquake hit under water in the Philippine Sea, 129 kilometers (80 mi) off the coast of Guam, 140 kilometer north-northwest of Dededo Village in Dededo. The center of this earthquake had a very shallow depth of 10 km. Shallow earthquakes usually have a larger impact than earthquakes deep in the earth.
| Date and Time: | Jun 8, 2025 10:50 (Guam Time) - Jun 8, 2025 00:50 Universal Time. |
|---|---|
| Location: | 140 km NNW of Dededo Village, Dededo, Guam. Coordinates 14°39'24"N 144°16'45"E. |
| Map: |  Map of area around epicenter. Click to open in Google Maps. |
| Magnitude: | MAG 5.3 Detected by 28 stations. Maximum Error Range ±0.059 . |
| Depth: | 10 km (6 mi) A very shallow depth. |
| Tsunami Risk: | Low tsunami risk Earthquakes under MAG-6.5 do not usually cause tsunami's. Always stay cautious - More info here. |
Nearby towns and cities
2 countries can be found within 300km of the epicenter of this earthquake: Guam and Northern Mariana Islands .
Dededo Village in Dededo, Guam is the nearest significant place from the epicenter. The earthquake occurred 140 kilometer (87 mi) north-northwest of Dededo Village.
The table below provides an overview of all places in proximity of today's earthquake.
Overview of nearby places
| Distance | Place |
|---|---|
| 140 km (87 mi) SSE from epicenter |
Dededo Village Dededo, Guam. |
| 141 km (88 mi) SSE from epicenter |
Yigo Village Yigo, Guam. |
| 141 km (88 mi) SSE from epicenter |
Tamuning-Tumon-Harmon Village Tamuning, Guam. |
| 141 km (88 mi) SSE from epicenter |
Tamuning Tamuning, Guam. |
| 141 km (88 mi) SSE from epicenter |
Hagåtña Hagatna, Guam. |
| 141 km (88 mi) SSE from epicenter |
Guam Government House Hagatna, Guam. |
| 146 km (91 mi) SSE from epicenter |
Mangilao Village Mangilao, Guam. |
| 170 km (106 mi) ENE from epicenter |
Saipan Saipan, Northern Mariana Islands. |
Aftershocks detected
This main shock was prefaced by 1 smaller foreshock. Roughly 3 hrs before this earthquake, a foreshock measuring MAG-4.9 was detected nearby this earthquake.
Overview of foreshocks and aftershocks
| Classification | Magnitude | When | Where |
|---|---|---|---|
| Foreshock | M 4.9 |
3 hrs earlier Jun 8, 2025 08:04 (Guam Time) | 20 km (12 mi) S from Main Shock. |
| Main Shock This Earthquake |
M 5.3 |
Jun 8, 2025 10:50 (Guam Time) | - |
More earthquakes coming?
Earthquakes can create aftershocks. These are generally at least 1 magnitude lower than any main shock, and as time passes the chance and strength of aftershocks decreases.
In only six percent of cases, significant earthquakes are followed by a larger main shock, making the current earthquake a foreshock. While the chance of this happening is not so large, it is adviced to maintain cautiousness in the hours and days following a major earthquake.
Read: How to Stay Safe during an Earthquake (cdc.gov).Earthquakes like this happen often in the region
Earthquakes of this strength are very common in the region. This is the strongest earthquake to hit since May 28th, 2025, when a 5.8 magnitude earthquake hit 214 km (133 mi) further south-southeast. An even stronger magnitude 6 earthquake struck on February 11th, 2018.
In total, 40 earthquakes with a magnitude of 5.3 or higher have been registered within 300km (186 mi) of this epicenter in the past 10 years. This comes down to an average of once every 3 months.
Low tsunami risk
Based on early data it appears this earthquake was not strong enough (lower than MAG-6.5) to be likely to cause destructive tsunami's. However this earthquake appeared to have hit at a shallow depth under sea, so stay cautious and monitor advice from local authorities.
Tsunami Risk Factors
| Factor | Under Sea? | MAG-6.5 or stronger? | Shallow depth? |
|---|---|---|---|
| Explanation | Almost all tsunami's are caused by earthquakes with their epicenter under sea or very near the sea. However stay cautious in coastal areas as earthquakes on land may cause landslides into sea, potentially still causing a local tsunami. | Under MAG 6.5: Very unlikely to cause a tsunami. MAG 6.5 to 7.5: Destructive tsunami's do occur, but are uncommon. Likely to observe small sea level changes. MAG 7.6+: Earthquakes with these magnitudes might produce destructive tsunami's. |
Most destructive tsunami's are caused by shallow earthquakes with a depth between 0 and 100km under the surface of the earth. Deeper tsunami's are unlikely to displace to ocean floor. |
| This Earthquake | This earthquake appears to have struck under the sea. | Not this earthquake. This earthquake had a magnitude of 5.3. Earthquakes of this strength are unlikely to trigger a tsunami. |
This earthquake occurred at a depth of of 10 km (6 mi). Earthquakes this shallow could trigger a tsunami. |
Sources
Last updated 21/06/25 00:18 (). This article contains currently available information about the earthquake and is automatically composed. We continue to update this article up to a few days after the earthquake occurred.
- US Geographic Society (USGS): Earthquake us6000qiv6
- European-Mediterranean Seismological Centre (EMSC): Earthquake 20250608_0000008
- Geonames.org: World Cities Database
- Google Maps: Static API
- Earthquakelist.org: Historic Earthquakes Database
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